I sometimes wonder about those Great People like Stevie Wonder (Musician), Stephen Hawkings(Astro Physicist), Helen Keller (Author) etc.

They are in the category of Disabled i.e Blind, Deaf or Dumb, suffering from Disease. But aren't they exceptional in rising to those Great Heights in their fields ?..What qualities do they attribute ? viz Will Power, Determination etc

Well, i believe some have it and some don`t... plain and simple as that. I don`t think there is a serious scientific explanation for being a genius or being a famous singer/songwriter.

If you take, for example, Stevie Wonder´s talent as a singer, i think that has nothing to to with his blindness. Many people are blind, but that doesn`t mean that they can sing equally well. Stevie Wonder just has this natural high command over his voice, a unique & memorable style and, of course, a bunch of international superhits.

Mr. Hawking was a genius long before ALS took over. But being bound to a wheelchair, he probably has not much left but thinking and cogitating over some astronomical problems. Maye that`s what makes him the determined and passionate scientist he is.

In my opinion, the idea that people become famous BECAUSE of their inability is much nicer than the often heard phrase that people got famous DESPITE their inability... Wolfgang Schäuble, a german politician who was shot an is paraplegic since then, put it like this: "Basically, all human beings are handicapped, but the advantage of us disabled is that we know it."

Dan Ackroyd, for example, has Tourette`s syndrome, Albert Einstein suffered from dyslexia and Syd Barret, a musical genius, is a sad example of a Schizophrenic.